Unseasonably hot weather is driving people to the coast, where they're finding good surf but dangerous rip currents. Solspot.com says that a swell out of the south-southwest is producing 3' to 5' waves, with some six-footers, in South County, and waves are nearly as large in North County. The swell will peak on Friday, which is expected to be the hottest day of the week. Forecasters say warm, dry Santa Ana winds could reach all the way to the coast, smoothing the face of waves and raising coastal temperatures into the low 90s. The rip currents will last into Saturday, and there will be times when the surf explodes up on to rocks, especially at Sunset Cliffs. Beach-goers shouldn't turn their back to the ocean, or venture too far down on to the rocks.

There will be a 4' 5'' high tide at 6:01 p.m. on Friday. Sea surface temperatures are in the 63-65 degree range.